Unaudited Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2012	Sep. 30, 2012
ASSETS
Allowances for accounts receivable	$ 2,184	$ 2,235
LIABILITIES AND STOCKHOLDERS’ EQUITY
Discounts on total debt	$ 2,944	$ 3,082
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	24,690,033	24,601,830
Common stock, shares outstanding	24,690,033	24,601,830